Question: Tell me phase whose name has the word hydrogen in it.
Paraphrase: Let me know stage whose title has the word hydrogen in it.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q104837 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'hydrogen')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: metallic hydrogen, metallic hydrogen, liquid hydrogen, liquid hydrogen, solid hydrogen, solid hydrogen